Fountain pen



Dec. 3, 1929. J. H. WILSON FOUNTAIN PEN Filed Dec; 24, 1928 J/mEs LLOYDH. ML 50",

INVENTdR.

ATTORNEY Patented Dec. 3,1929

UNITED STATES PATENT OFFICE FOUNTAIN PEN Application filed December 24,1928. Serial No. 328,153.

This invention relates to a fountain pen designed to provide facilitiesfor varying the writing fluid, so that a plurality of various colouredinks may be used.

The principal object is to provide a simple means for feeding variouscoloured inks to 4 the nib-flow channel.

A further object is to provide a means for cutting off the flow throughthe other fluid ducts while permitting a flow through one.

fluid duct of the coloured ink desired.

A further object is to provide a means for filling or emptying each sackindividually.

With the foregoing and other objects in view as will appear as thedescription proceeds, the invention consists of the novel construction,combination and arrangement of co-operating elements as morespecifically set forth, claimed and shown in the accompanying drawingsforming a part of the present ap lication, in which:

ig. 1 is a longitudinal detail view of a fountain pen embodyingltheprinciples of my invention, art being s own in section and 5 part beingroken away.

Fig. 2 is a sectional view taken on the line 22 of Fig. 1, the nib beingremoved.

. Fig. 3 is an enlarged view of a section of the pen, showing in detailthe ink-flow control member.

Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 1.

Fig. 5 is an end view of the pen looking directly on towards the pointof the nib.

Fig. 6 is a perspective viewof a modified form of the ink-flow controlmember.

Like numerals of reference designate corresponding parts throughout thedifferent views.

7 is the fountain pen barrel, preferably of cylindrical formation. Theforward end of this barrel, as at 8, is provided exteriorl withthreading to accommodate any suitab e cap. Extending forwardly of thethreaded portions 8 is an annular extension 9, provided with alongitudinal slot extending inwardly from the outer periphery as at. 10.11 is a plug, the inner end of which is adapted to be fitted securelyinto the forward end of the bar rel 7. The outer end of this plug may beof any desired formation on its outer contour. Protruding inwardly fromthe inner end of the plug 11, I provide nipples 12 and 14. I do not wishto be limited to the particular shape of these nipples as they may be ofany desired shape to accommodate the ink sacks -15 and 16 respectively,which sacks may be annular, oval, semi-circular or of any other desiredshape in cross section to best serve the purpose for which they aredesigned. In the drawing, Fig. 4, these sacks are shown as of oval shapein cross section. 17 is a partition plate extending longitudinallybetween the sacks 15 and 16. When the plug 11 is properly positioned inthe barrel 7, the end of this partition plate 17 engages in a transverse slot formed on the inner end of the plug 11. Adjacent each sack isprovided a means for compressing the same. This invention does notrelate to the specific structure of a means for compressingthe sacks andtherefore any desired means for compressing the sacks may be used inconnection with the construction disclosed in this invention. In theaccompanying drawings, I show a lever 18 7 fulcrumed to the barrel 7 theinner end of which moves the compression plate 19 to compress itsrespective sack when the lever is operated.

20 is the nib plug which may be of any desired shape or design such asnow or may beused for assisting in the supporting of the nib in a plugsimilar to the plug 11. This nib plug 20 may be formed as an integralpart of the plug 11 or it may be separate with its 5 inner end fittedsecurely in an opening formed inwardly from the forward end of the plug11.

In the construction disclosed, this nib plug 20 is shown as an integralpart and has formed therearound an annular guideway designed to receiveand retain the inner end of the nib 21 between the nib plug 20 and theplug 11. This nib plug 20 is provided with a nib-flow channel 22,extending longitudinally on the upper portion thereof. In the plug 11, Iprovide' inflow ducts 23 and 24, extending from the inner ends of thenipples 12 and 14 respectivelyand converging to a common meeting oint 25adjacent to and in direct communication with the nib-flow channel 22.

at 32 instead 0 The plug 11 is provided with a slot 26 formed inwardly,preferably from the left side thereof, to intersect the ink-flow ducts24 and 23. 27 is an ink-control memberl reciprocally positioned in theslot 26 and in snug relationship to the surrounding portion of the plug11. A portion adjacent the upper end of the ink-control member isreduced, as at 28, and the upper end 29 bent preferably at right anglesto the body portion of the inkcontrol member 27. The ink-control member27 is provided with openings 30 and 31 spaced a pre-determined distanceapart, so that when the ink-control member 27 is in its full seatedposition, the opening 31 will register in alignment with the ink-flowduct 24, while when the ink-control member 27 is pulled outwardly untilits shoulder contacts with the inner contour of the annular extension 9,the opening 30 will register in alignment with the ink-flow duct 23.When the plug 11 is being fitted into the forward end of the barrel 7,the ink-control member 27 is positioned in the opening 26 and thereduced portion 28 positioned opposite the open end of the slot 10. Whenthe plug 11 is then pushed farther into the open end of the barrel 7,the ink-control member 27-is locked against displacement but may bereciprocated in the opening 26 (the reduced portion 28 working throughthe slot 10) to alternate the flow of inks through either the ink-flowducts 23 and 24 as desired. The bent end 29 of the inkcontrol memberprovides a means whereby a finger nail or any thin edged article may beinserted thereunder to raise the same outwardly from the annularextension 9.

Referring to the modified form, Fig. 6, I provide an ink-control member27, which is practically the same as the ink-control member 27hereinbefore described, with the exception that I rovide a singleopening as f the spaced openings 30 and 31. When the ink-control member27 is ,in full seated position, the opening 32 would register inalignment with the ink-flow, duct 23, while when raised tofullpulled-out position, the opening 32 would be in alignment with theink-flow duct 24.

In the construction disclosed, I have shown only two sacks 15 and 16,with two nipples 12 and 14 to which the sacks are fitted and inkflowducts 23 and 24 through which different coloured inks will flow from therespective sacks. I do not Wish to limit myself to providing a penstructure which is provided with means for writing with only twodifferent coloured inks. It will be readily appreciated that additionalsacks, additional nipples and additional ink-flow ducts may be providedto accommodate a greater number of coloured inks. Therefore, theforegoing specification and annexed drawings disclose the preferredembodiment of my invention, but it is to be understood that minorchanges may be resorted to in the commercial adaptation of my inventionwithout departing from the scope of the invention as hereinafterclaimed.

What I claim as new is:

1. A fountain pen comprising a barrel; a plug, having its inner endnormally fitted securely in the forward end of said barrel; a nib plugcarried by the forward end'of said plug; a nib-flow channel formed insaid nib plug; a nib retained on said nib plug a over said channel; aplurality of nipples carried by the inner end of said plug; ink sackscarried by said nipples; a partition between said sacks; an individualink-flow duct extending from each respective 'nipple, which ductsconverge to a common meeting point adjacent to and in communication withthe inner end of said nib-flow channel and a means reciprocally mountedtransversely in said plug for individually controlling the flow of inkthrough said ink-flow ducts.

2. A fountain pen comprising a barrel; a plug, having its inner endnormally fitted securely in the forward end of 'said barrel;

a nib plug carried by the forward end of said plug; a nib-flow channelformed in said nib plug; a nib retained on said nib plug over saidchannel; a plurality of nipples carried by the inner end of said plug;ink sacks carried by said nipples; a partition between said sacks; anindividual ink-flow duct extending from each respective nipple, whichducts converge to a common meeting point adjacent to and incommunication with the inner end of said nib-flow channel; an inkcontrolmember reciprocally mounted transversely in said plug' to intersect saidinkfiow ducts, said member having formed therein openings at apredetermined distance apart so that said openings may be brought (oneat a time) into registered alignment with its respective ink-flow ductand a means for limiting the outward movement of said mem- 3. A fountainpen comprising a barrel; a plug, having its inner end normally fittedsecurely in the forward end of said barrel; a nib plug carried by theforward end of said plug; a nib-flow channel formed in said nib plug; anib retained on said nib plug over said channel; a plurality of nipplescarried by the inner end of said plug; ink sacks carried by saidnipples; a partition between said sacks; an individual ink-flow ductextending from each respective nipple, which ducts converge to a commonmeeting point adjacent to and in communication with the inner end ofsaid nib-flow channel; a means for individually controlling the flow ofink through said ink-flow ducts, which means consists of a control platereciprocally mounted transversely in said plug to intersect saidink-flow ducts, said plate permitting the flow of ink from one ducttherethrough when said control plate is in its innermost position andfrom the other duct when in its outermost position and a means forlimiting the adjustment of said plate to provide the desired ink flowtherethrough.

In testimony whereof, I affix my signature.

JAMES LLOYD H. WILSON.

